Measurement E151M2965
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | ALU | |
| εL: | 0.3049 | |
| Q2: | 0.0844 GeV2 | |
| W: | 1325.0 GeV | |
| Ebeam: | 1.9889 GeV | |
| ε: | 0.944 | |
| cos(θπ+) | φ(π+), [deg] | ALU | uncertainty |
|---|---|---|---|
| 0.15 | 294.0 | 0.0859 | 0.2598 |
| 0.15 | 306.0 | 0.0807 | 0.1934 |
| 0.25 | 66.0 | 0.116 | 0.2205 |
| 0.25 | 78.0 | 0.0469 | 0.2307 |
| 0.25 | 294.0 | 0.1161 | 0.1974 |
| 0.25 | 306.0 | 0.1561 | 0.219 |
| 0.35 | 66.0 | 0.4286 | 0.1562 |
| 0.35 | 78.0 | 0.3323 | 0.1714 |
| 0.35 | 282.0 | 0.131 | 0.2356 |
| 0.35 | 294.0 | -0.0456 | 0.1797 |
| 0.35 | 306.0 | -0.2179 | 0.1707 |
| 0.45 | 66.0 | 0.0772 | 0.1861 |
| 0.45 | 78.0 | -0.2356 | 0.1415 |
| 0.45 | 90.0 | -0.1528 | 0.1917 |
| 0.45 | 282.0 | -0.0075 | 0.2053 |
| 0.45 | 294.0 | 0.2586 | 0.1641 |
| 0.45 | 306.0 | 0.6078 | 0.2156 |
| 0.55 | 66.0 | -0.1869 | 0.2004 |
| 0.55 | 78.0 | -0.3078 | 0.1429 |
| 0.55 | 90.0 | -0.2019 | 0.2011 |
| 0.55 | 258.0 | -0.262 | 0.2107 |
| 0.55 | 270.0 | 0.4922 | 0.1908 |
| 0.55 | 282.0 | -0.0836 | 0.2098 |
| 0.55 | 294.0 | 0.0508 | 0.2177 |
| 0.65 | 66.0 | -0.4383 | 0.2376 |
| 0.65 | 78.0 | 0.0331 | 0.195 |
| 0.65 | 90.0 | -0.338 | 0.1941 |
| 0.65 | 102.0 | 0.0548 | 0.1983 |
| 0.65 | 114.0 | -0.2301 | 0.2034 |
| 0.65 | 126.0 | -0.0672 | 0.2283 |
| 0.65 | 234.0 | 0.0692 | 0.2417 |
| 0.65 | 246.0 | -0.0145 | 0.2129 |
| 0.65 | 258.0 | -0.0977 | 0.1606 |
| 0.65 | 270.0 | -0.0745 | 0.1567 |
| 0.65 | 282.0 | 0.0547 | 0.1887 |
| 0.75 | 90.0 | 0.3037 | 0.2213 |
| 0.75 | 102.0 | 0.4811 | 0.1645 |
| 0.75 | 114.0 | 0.0148 | 0.1533 |
| 0.75 | 126.0 | -0.0409 | 0.1511 |
| 0.75 | 138.0 | 0.429 | 0.1987 |
| 0.75 | 210.0 | -0.1452 | 0.283 |
| 0.75 | 222.0 | -0.3543 | 0.2123 |
| 0.75 | 234.0 | -0.2237 | 0.1671 |
| 0.75 | 246.0 | -0.1301 | 0.1523 |
| 0.75 | 258.0 | 0.1486 | 0.1454 |
| 0.75 | 270.0 | 0.3367 | 0.147 |
| 0.75 | 282.0 | -0.0614 | 0.1974 |
| 0.85 | 90.0 | 0.3894 | 0.1817 |
| 0.85 | 102.0 | -0.0277 | 0.165 |
| 0.85 | 114.0 | 0.2661 | 0.1305 |
| 0.85 | 126.0 | 0.0676 | 0.1434 |
| 0.85 | 138.0 | -0.0015 | 0.1499 |
| 0.85 | 150.0 | 0.2068 | 0.1794 |
| 0.85 | 162.0 | -0.0402 | 0.2309 |
| 0.85 | 198.0 | 0.0515 | 0.2852 |
| 0.85 | 210.0 | -0.1915 | 0.2471 |
| 0.85 | 222.0 | 0.0214 | 0.1642 |
| 0.85 | 234.0 | -0.0106 | 0.1655 |
| 0.85 | 246.0 | -0.1313 | 0.1381 |
| 0.85 | 258.0 | 0.1323 | 0.133 |
| 0.85 | 270.0 | -0.0571 | 0.147 |
| 0.85 | 282.0 | 0.143 | 0.1918 |
| 0.95 | 114.0 | -0.1161 | 0.2092 |
| 0.95 | 126.0 | 0.1879 | 0.1839 |
| 0.95 | 138.0 | 0.375 | 0.1856 |
| 0.95 | 150.0 | 0.0512 | 0.2046 |
| 0.95 | 162.0 | 0.5978 | 0.1824 |
| 0.95 | 174.0 | 0.2625 | 0.2635 |
| 0.95 | 210.0 | -0.2898 | 0.2743 |
| 0.95 | 222.0 | 0.1827 | 0.2099 |
| 0.95 | 234.0 | -0.3469 | 0.1733 |
| 0.95 | 246.0 | -0.0353 | 0.1956 |
| 0.95 | 258.0 | 0.1449 | 0.179 |
| 0.95 | 270.0 | -0.2573 | 0.1912 |
Experiment comment: